Wheat starch is a carbohydrate found in many plants and is a common part of the human diet. Food starches are added to thicken or stabilize products such as puddings, soups, sauces, pie fillings, salad dressings and in many baking applications. Wheat starch thickens food through Gelatinization and retrogradation. Heat causes starch to absorb water and swell, while increasing viscosity and clarity. Once the maximum viscosity is reached, the cells move apart and decrease viscosity. When the product begins to cool again, viscosity increases, making the solution cloudy and eventually forming a gel. The strength of the gel depends on the type of starch and how much is used. Wheat starch comes from the wheat plant with the genus triticum of the grass family, gramineae. Wheat is further classified into winter wheat and spring wheat but most of the wheat starch comes from the winter wheat variety. Wheat starch is not only used as an ingredient for cooking and baking but it is also for cosmetics, adhesive and many other products. When the vitality of the gluten fraction is of no concern, then Isolation of wheat starch can be done essentially by the method used to manufacture corn starch, which for soft wheat with 10% protein gives a 73% yield of starch (0.6-0.8% protein) based on grain.3.
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